Deep Dive
1. Major SDK Overhaul with New Modules (September 2025)
Overview: This update transformed the SDK into a more powerful toolkit for developers. It added dedicated modules for handling different asset types and internal tools to simulate transactions before they are sent, reducing errors and failed transactions for end-users.
Version 0.7.0 introduced several core components. The new Assets Module provides standardized classes for Fungible Tokens (FT), NFTs, and TON assets, simplifying code for developers. A key addition is the Simulator Component, which allows developers to estimate gas fees and predict transaction outcomes on the TAC side before committing funds. Furthermore, Transaction Managers for both TON and TAC handle the execution logic for cross-chain moves, while a TonTxFinalizer utility confirms transaction success on the TON blockchain. The update also significantly boosted SDK initialization speed through parallelized queries.
What this means: This is bullish for TAC because it makes building complex, user-friendly DeFi applications on Telegram much easier and more reliable. Developers can create smoother experiences with fewer transaction errors, which could accelerate ecosystem growth and adoption.
(JavaScript SDK - TAC)
2. Infrastructure Switch to New Address Set (June 2025)
Overview: This was a backend infrastructure update that changed the network addresses the SDK connects to. For everyday users, this change works behind the scenes to ensure the network remains stable and responsive as usage grows.
The change in version 0.6.4 switched the SDK to use the spb(chain) set of addresses. This update is typically done to point to more robust, scalable, or geographically distributed network endpoints maintained by the protocol.
What this means: This is neutral for TAC as it's a necessary maintenance update. It doesn't add new user features but is crucial for maintaining a reliable and scalable network foundation, which supports long-term health and prevents downtime.
(JavaScript SDK - TAC)
3. Enhanced Cross-Chain Transaction Features (June 2025)
Overview: This update made moving assets between the TON and TAC blockchains more efficient and user-friendly. It allowed multiple transactions to be bundled together and provided clearer feedback if something went wrong.
Version 0.6.3 added the ability to send multiple cross-chain transactions at once via a new sendCrossChainTransactions method and included batch sending support. It also improved error handling to give developers better insights into why a transaction might fail, allowing for quicker fixes.
What this means: This is bullish for TAC because it reduces friction and potential costs for users engaging in DeFi across chains. Efficient batch transactions and clear errors lead to a more professional and accessible financial experience within Telegram.
(JavaScript SDK - TAC)
Conclusion
The development trajectory for TAC Protocol shows a clear focus on maturing its core infrastructure—shifting from basic connectivity to sophisticated, developer-friendly tooling for cross-chain operations. This foundational work is essential for enabling the seamless DeFi experiences it aims to deliver to Telegram's massive user base. With the latest major SDK update now nearly a year old, what might the next development milestone focus on to further drive adoption?